发明名称 POWDER METALLURGICAL METHOD FOR PRODUCING A WORK PIECE AND POWDER METALLURGICALLY PRODUCED WORK PIECE
摘要 The invention relates to a powder metallurgical method for producing a work piece, in particular a coin blank, wherein the work piece is produced by sintering a powder composition containing at least two different components, at least one powder component of the powder composition being magnetic and at least one powder component of the powder composition being non-magnetic, wherein a mass fraction of the at least one magnetic powder component is between 2 and 40% of the powder composition, wherein a melting temperature of the at least one non-magnetic powder component is less than or equal to 900°C greater than a melting temperature of the at least one magnetic powder component. The work piece relates to a coin blank which can be further processed into a coin, in particular by means of minting. The invention also relates to a coin of this type.
申请公布号 WO2016020311(A1) 申请公布日期 2016.02.11
申请号 WO2015EP67783 申请日期 2015.08.03
申请人 FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.;REISCHAUER GMBH 发明人 VELTL, GEORG;WAGNER, GERD
分类号 C22C1/04;A44C21/00;B22F3/11;C22C1/10;C22C33/02 主分类号 C22C1/04
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